Device for generating electrical signal indicative of temperature
A temperature controller and amplitude technology, applied in the field of electrical signal devices, can solve problems such as limited design freedom and reduced output current
Pending Publication Date: 2022-05-06
UNIVERSITY OF SURREY
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In both cases, the resulting signal can be used for temperature regulation (such as in an overheating protection circuit), but additional circuitry is required to reduce the output current in response to a sensed increase in current
Furthermore, the design freedom for modifying the temperature dependence of the output signal in such circuits may be limited
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] In the following detailed description, only certain exemplary embodiments of the present invention are shown and described, by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive. Throughout the specification, the same reference numerals denote the same elements.
[0050] now refer to figure 1 , shows an apparatus for generating an electrical signal indicative of temperature according to an embodiment of the present invention. The device 100 comprises a first transistor 110 and a second transistor 120 similarly connected to a current mirror circuit. The first transistor 110 and the second transistor 120 each include a source 111 , 121 , a gate 112 , 122 and a drain 113 , 123 . The first transistor 110 and the second tr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Disclosed is an apparatus for generating an electrical signal indicative of a temperature, the apparatus comprising: a first thin film transistor (TFT) comprising a first source, a first gate, and a first drain, the first drain configured to receive a reference current; and a second TFT including a second source, a second gate, and a second drain, the first gate and the second gate both configured to receive the same gate voltage, where the first TFT and the second TFT are configured such that a temperature correlation of the first TFT differs from a temperature correlation of the second TFT such that an output current at the second TFT and the second drain depends on temperature. The temperature correlation of the output current can be controlled by selecting appropriate design parameters for the first TFT and the second TFT. A method of designing the apparatus to generate an output current having a target temperature correlation is also disclosed.
Description
technical field [0001] The invention relates to a device for generating an electrical signal indicative of temperature. Background technique [0002] Circuits and devices that can detect temperature changes are known. For example, the threshold voltage of a Metal Oxide Semiconductor Field Effect Transistor (MOSFET) can be used to detect temperature changes, or a thermistor can be used to generate an output current that increases with temperature. In both cases, the resulting signal can be used for temperature regulation (such as in an overheating protection circuit), but additional circuitry is required to reduce the output current in response to a sensed increase in current. Furthermore, the design freedom for modifying the temperature dependence of the output signal may be limited in such circuits. Therefore, there is a need in the art for a circuit design that can be adapted to generate an output signal with a varying temperature dependence. Contents of the invention ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/01
CPCG01K7/01
Inventor 拉杜·斯波雷亚伊娃·拜斯特林克
Owner UNIVERSITY OF SURREY